The table wines of Port producer Quinta do Noval are excellent, but until this vintage the tiny production of their white wine meant it did not reach the UK market. Now, a small shipment is with UK importer Gonzalez Byass, and is available from selected independent retailers. From vineyards at over 500 metres altitude, it's a blend of the local Viosinho and Gouveio, planted on schist soils. Very pale green in colour, there's a mineral and citrus intensity about the nose, but there's a lovely suggestion of salts and gentle summer floral notes too, combining both a sense of concentration and delicacy. In the mouth the wine has a very similar tension, it is full and sweet-fruited as it flows across the mid-palate, but then that mineral salts and citrus zest grip and brightness gives it real mouth-watering intensity. Long, very pure, this would be very good with white fish I think, though Noval suggest poultry too.